would not take her back especially as she keeps lying about it.
You've been with her for 9 years and have children together. She can't even respect you enough to tell you the absolute truth, motives etc. She sounds really immature. Not knowing the truth and having doubts might eventually eat away at any trust you have left - you don't just leave recorders around for curiosity, do you? Did you ever approach her about these trust issues? If you do end up working things out there's always the shadow of you recording her and not trusting her, and you not being able to trust her around other men.
I'm sorry but she's a liar, and she might end up turning it around on you (calling you a mad man...), which could end up with you looking like the bad person. I really don't know what advice to give you, it's an awful situation.

Good luck
